Vulnerability Details : CVE-2023-20083
A vulnerability in ICMPv6 inspection when configured with the Snort 2 detection engine for Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause the CPU of an affected device to spike to 100 percent, which could stop all traffic processing and result in a denial of service (DoS) condition. FTD management traffic is not affected by this vulnerability. This vulnerability is due to improper error checking when parsing fields within the ICMPv6 header. An attacker could exploit this vulnerability by sending a crafted ICMPv6 packet through an affected device. A successful exploit could allow the attacker to cause the device to exhaust CPU resources and stop processing traffic, resulting in a DoS condition. Note: To recover from the DoS condition, the Snort 2 Detection Engine or the Cisco FTD device may need to be restarted.
Vulnerability category: Denial of service
Products affected by CVE-2023-20083
- Cisco » Firepower Threat DefenseVersions from including (>=) 6.7.0 and up to, including, (<=) 6.7.0.3cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:*
- Cisco » Firepower Threat DefenseVersions from including (>=) 7.0.0 and up to, including, (<=) 7.0.5cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:*
- Cisco » Firepower Threat DefenseVersions from including (>=) 6.4.0 and up to, including, (<=) 6.4.0.17cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:*
- Cisco » Firepower Threat DefenseVersions from including (>=) 7.2.0 and up to, including, (<=) 7.2.3cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:*
- Cisco » Firepower Threat DefenseVersions from including (>=) 6.6.0 and up to, including, (<=) 6.6.7.1cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:*
- Cisco » Firepower Threat DefenseVersions from including (>=) 6.2.3 and up to, including, (<=) 6.2.3.18cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:*
- Cisco » Firepower Threat DefenseVersions from including (>=) 7.3.0 and up to, including, (<=) 7.3.1.1cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:*
- Cisco » Firepower Threat DefenseVersions from including (>=) 7.1.0 and up to, including, (<=) 7.1.0.3cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2023-20083
0.11%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 46 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2023-20083
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
8.6
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H |
3.9
|
4.0
|
NIST | |
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
NIST | |
8.6
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H |
3.9
|
4.0
|
Cisco Systems, Inc. |
CWE ids for CVE-2023-20083
-
The product contains an iteration or loop with an exit condition that cannot be reached, i.e., an infinite loop.Assigned by: ykramarz@cisco.com (Secondary)
References for CVE-2023-20083
-
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftd-icmpv6-dos-4eMkLuN
Cisco Firepower Threat Defense Software ICMPv6 with Snort 2 Denial of Service VulnerabilityVendor Advisory
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